Holding means for date-setting devices



June 25, 1928.

J. F. OHMER HOLDING MEANS FOR DATE SETTING DEVICES Filed Oct. 22; 1926 'ATTORNE).

[/5 N TOR- JOHN F. OHMER.

VlAlZl/l/[III/Illl/IIIIIIIIIIIIII Patented June 26, 1928.

UNITED STATES PATENT OFFICE.

JOHN FRANCIS OHMER, OF DAYTON, OHIO, ASSIGNOR TO OHMER FARE REGISTER COM IPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO.

I-IOLDING.MEANS FOR DATE-SETTING DEVICES.

Application filed October 22, 1926. Serial No. '14s,321.

This invention relates to an improved means for holding or locking gears connected with printing wheels in position after they have been set, and constitutes an improvement on the structure shown in the application of Albert S. Vheelbarger and Grover O. Coil, Seri'alNo. 65,532, filed October 29, 1925.

Many machines are provided with print ing wheels or indicating wheels to show the month, day and year in which the transaction recorded occurred. As instances of such machines might be mentioned cash registers and the machine in the aforementioned application.

In the drawings:

Fig. 1 is a front elevational view,

Fig. 2 is a cross-sectional view on the line 2-2 of Fig. 1, looking in the direct-ion of the arrows Fig. 3 is a detailed plan view of the mechanism shown at the right hand part of Fig. 1,

Fig. 4 is a fragmentary side elevational view of, the right hand end of the casing,

Fig. 5 is a cross-sectional View on the line *5-5. of Fig. 1, looking in the direction of the arrows, and

Fig. 6 is a cross-sectional View taken on tion of the arrows. v Referring more particularly to the drawings in which like reference characters are used throughout to designate similar parts; Knurled disks 1, 2 and 3am provided on which are indications to denote the month and day. The month disk 1 is connected to a sleeve 4 which carries a gear 5- which meshes with a. gear 6 secured to a printing wheel or visual indicator 7, on which are affixed characters to represent the months.

The gears 5 and 6 are provided with twelve teeth for the twelve months. The disk'2 is connected to a sleeve 8 within the sleeve 4,. which sleeve 8 carriesagear 9 which meshes any suitable instrument.

the line 66 of Fig. 4, looking. in the direc-v printing or visual disk16. -The'gears 9, 10,

14 and 15 are provided with ten teeth corresponding with the number of numerals on the date setting wheels 2 and 3, and the printing or visual disks 12 and 16 are each provided with ten characters from zero to nine inclusive corresponding to the numerals on the disks 2 and 3. The gear 17 on the shaft 13 integrally meshes with the gear 18 on the shaft 11, which gear is rigidly se- Once a year it is necessary to change the year wheel'19 and this, as above mentioned, is accomplished by rotating the-gear 17 by The shaft 4 is mounted in an intermediate plate 20 and in one of the sidewalls 21 of the machine, while the shaft 11 extends between the sidewalls 21 and 22 of the machine. The shaft 11 also carries Wheels 23 provided with suit able characters to indicate other data, which wheels 23 are actuated from the hand operated members24, all of which structure is fully described in the said application of lVlieelbarger and Coil, Serial No. 65,532 v If the disks on the shaft 11 are to be used as printing disks, as is indicated in Fig. 2, a platen holder 25 may be employed mounted on a shaft 26 which platen holder carries two platens 27and 28 and an inking roller 29. As the platen holder 25 is oscillated as described in the aforementioned application, the platens 27 and 28 and the inking roller 29 are moved across the faces of the disks on the shaft 11. Naturally this tends to rotate the disks 23 on the shaft 11. The wheels 23 areheld against such rotation by means shown in said copending application, .but the date wheels 7, 12, 16 and 19 have here tofore not been provided with any suitable means to hold them against accidental rotation, as, for instance, the accidental rotation imparted by the rollers 27, 28 and 29 moving across the face ofsarne.

A U shaped member 30 is'journaled on a projects on both sides of the arms shaft 31, which U shaped member is provided with arms or side members 32, one of which members is provided with an extension 33 which may be grasped by the hand of the operator. The arms 32 are provided with a hole 34 through which passes the shaft 31. If desired, a spacing sleeve 35 may be interposed between the arms 32. One of the arms 32 carries a pin 36 which 32 and is adapted to engage the gears 9, 14 and 17, each of which gears is a ten-toothed gear. The samearm 32 is provided with anofi-set linger as is clearly shown Fig. 5, which finger is curved and terminates in a reduced portion adapted to between the teeth on ie twelxetoothed gear 5.

The other arm 32 is provided with a cireular cutaway portion 38 adapted to receive the end of a pin 39 carried by a spring 40 V secured to the wall 21 of the machine. The

spring 40. V i i i "now be actuated by means of the disks 1, 2

pin orplungei' 39 is rovided with a beveled end "so as to be rear ily fitted into the cutaway portion 38 and to 'r'esilientl hold the member 30 agaiiist movement. hen, however, the operator grasps the extension 33, the lunger readily'yields against the tension bf the springlO so that the member 30 can be moved to disengage the pin 36 and finger 37 from the gears 5, 9, l4 and 17 so that the disks 1 2 and 3 can be operated to change thedate'. The right hand arm 32 is also rovided with a rectangular cutaway porion 41 which receives a pin 42 carried by the wall 21 of the machine. The ends of the cutaway portion 41 and pin 42 limit the riiovenient in either direction of the member v30.

In operation, the pin 36 and linger 37 normally engage their respective gears so that accidental rotation cannot be'imparted to the printing disks. When it is desired to change the date, however, the operator grasps the projection 33 and raises it while the plunger 39 is disengaged from the cutaway portion 38 against the tension of the The disks 7, 12,16 and 19 can and 3 and the gear 1'7. As soon as the date has been reset theoperator lowers the projection 33 so that the pin 36 and finger 37 engage their respective geais, locking the same against. accidental rotation whilethe plunger 39 ismoved into engagement with the cutaway portion 38 by means of the spring 4t), thereby resiliently holding the (member 30 and extension 33 against being -ObflQ 'll ma y a s i t b mad in thjspeeific form shown by way of example in this application. It is, therefore desired to claim the invention, broadly in whatever form it maybe exeeptas I may limit myself in the a pended claims.

gage the gears of uniform number of teeth and said linger to engage the gear having a different number hf teeth.

2. Ina machine of the type described, a plurality of gears, one bf said gears having a diifereiit number or teeth from the other of said gears, pivoted arm having an .eX-

' tensionada to be manually operated, a pin and a nger carried by said .arm, said pinenga'ging between adjaeent teeth on the gears having a unito rinn'uinber of teeth,

and said finger engaging between two teeth ef the gear having a different number of teeth. A 4

In a machine of thetype described, a plurality of gears, one of said gears having a dii'lerent number of teeth from the other of said gears, an arm provided with an extension adapted to be actuated b the hand of the operator, a pin ea er carried by said arm, said pin being adapted to engage the gears of uniform ii'uinberot teeth and said finger to engage the gear having a different number of teeth, and means to limit the movement of said arm;

4. In a machine of the type described, a plurality of gears, one ofsaid gears having a different number of teeth from the ether of said gears,an arm provided with an ex tengipa adapted to be actuated by the hand of the operator, a pin and a liii'ger carried by said arm, said pin being adapted to engage the gears of uniform niimber of teeth.

p u a y of g ars; 1' a a different number of teeth,fi"o111 the other of said gears, "an arm providedwith an extension adapted to be aeti ated the hahd of the operator, a pin and a linger carried said arm, said pin being adapted to engage the gears uniform number of teeth and said finger to eiigagethe gear having a different number of teeth, means to limit the movement of said arm in either directioh, and meansjto hbldsaidarm after the sainejhas been lowered "so astoeng'age said and finger looked position With said gears.

6. In a machine of the type described", a

shamans printing disks rotatably meunted e oil said gears having on said shaft, gears operatii'ely connected with each of said disks, a second shaft, each of said last mentioned gears intermeshing with one of the first mentioned gears, means whereby said second mentioned gears are rotated to actuate the first mentioned gears and said disks, means whereby said'second mentioned gears are locked against rotation, said means consisting of a manually operated arm, and means carried by said arm to 0 engage said second mentioned gears to hold the same against accidental rotation.

In testimon whereof I aflix my signature.

OHN FRANCIS OHMER. 

